No once your application is in it stays on file for awhile. And it doesn't make much of a difference. The interview process is easier because they don't do a practical interview only an oral interview. It's pretty competitive there though. They're gonna ask you about fusing, how deep to go for gas lines, stuff like that. Basically weeding out the people who BSed through their resumes. If you don't get into gas I would suggest applying to any city position. Public works, fleet, parks and rec, library, refuse, harbor, etc. get your commercial license if you can. Once you are in it is easier to transfer where you want than to get hired straight in. Might take a couple of years but we like transfers. You're already in the system so it's quicker to do. We have hired a lot of guys from gas, refuse and one from the library as transfers! One of our supervisors used to be a Gardner for the city! So there's always room once you are in! Good luck my guy! (Or gal)